[108.10] Analysis of the LSST image quality and effects seen through the atmosphere.

The 8.4m Large Synoptic Survey Telescope (LSST) is a new 3.5
degree field of view facility for the purpose of studying
the nature of dark energy and matter along with the time
varying nature of the optical universe. These science
missions require precise knowledge and control of both the
size and shape of the point spread function (PSF) delivered
by the LSST. Here, we present analyses of three areas of
image quality that are critical to the LSST: 1) the
stability and angular correlation of the stellar PSF second
moments as seen through a turbulent atmosphere typical of a
high quality observing site and the baseline LSST optical
design, 2) the ability to recover a synthetically induced
gravitational shear signal on Hubble Deep Field data
modified to mimic seeing and telescope aberrations, and 3)
the effects of chromatic atmospheric refraction through the
LSST filters on image shape and field registration. For the
stability, angular correlation and chromatic refraction
studies we compare our simulations with data obtained on
modern new technology telescopes.